Lighter construction

ABSTRACT

A lighter has a reservoir containing fuel under pressure and a valve to prevent escape through an opening in the reservoir. An ignition member equipped with a pressure-reducing regulator has a hollow cylindrical projection movable through the opening to open the valve. An elastomeric O-ring in the opening cooperates with the valve to prevent escape of fuel and also cooperates with the projection to seal against leakage when the valve is open.

United States Patent 1191 Piffath et a1.

[ LIGHTER CONSTRUCTION [75] Inventors: Rodney S. Piffath, Northridge; John J. Cole, Beverly Hills, both of Calif.

[73] Assignee: International Fire Tool Corporation,

New York, NY. [22] Filed: May 18, 1973 [21] App]. No.: 361,553

Related US. Application Data [63] Continuation-impart of Ser. No. 317,529, Dec. '22,

1972, abandoned.

[52] US. Cl 431/254, 141/18, 222/3, 431/344 [51] Int. Cl.. F23q 2/16 [58] Field of Search 431/254, 277, 344; 222/3; 141/18 [56] References Cited UNITED STATES PATENTS 3,413,070 1 11/1968 Piffath et a1. 431/89 1111 I 3,820,941 1 June 28, 1974 3,542,247 1/1970 Racek ..431/344x 3,705,785 12/1972 Gotu ..431/344 Primary Examiner-Edward G. Favors Attorney, Agent, or FirmLyon & Lyon 5 7] ABSTRACT A lighter has a reservoir containing fuel under pressure and a valve to prevent escape: through an opening in the reservoir. An ignition member equipped with a pressure-reducing regulator has a hollow cylindrical projection movable through the opening to open the valve. An elastomeric O-ring in the opening cooperates with the valve to prevent escape of fuel and also cooperates with the projection to seal against leakage when the valve is open.

13 Claims, 7 Drawing Figures l LIGHTER CONSTRUCTION This application is a continuation-impart of our copending application Ser. No. 317,529 filed Dec. 22, 1972, now abandoned, and entitled Lighter Construction.

This invention relates to lighters of the type producing a flame from fuel under pressure, such as liquefied petroleum gas. It is an object of this invention to provide a lighter of this type having anapproved form of sealing device which cooperates with a valve element within a fuel reservoir'member to prevent escape of fuel, and which also cooperates with a hollow projection on an ignition member to seal against the outer surfaceof the projection when it is moved toward the interior of the reservoir to open the valve to permit flow of fuel into the ignition member. The sealing device also permits separation of the ignition member from the fuel reservoir and withdrawal of the hollow projection from the sealing device. This action exposes the opening into the fuel reservoir so that a filler tube may be thrust into the opening to open the valve and permit refilling of the fuel reservoir with fuel under pressure.

Other and more detailed objects and advantages will appear hereinafter.

In the drawings:

FIG. I is a side elevation showing a preferred embodiment of this invention.

FIG. 2 is a sectional elevation on an enlarged scale, partly broken away.

FIG. 3 is a top plan view.

FIG. 4 is a sectional detail taken substantially on the lines 44 as shown in FIG. 2.

FIG. 5 is a sectional view similar to FIG. 2 showing the parts in a different position.

FIG. 6 is a sectional view similar to FIG. 2 showing a modification.

FIG. 7 is a sectional side elevation showing the manner of refilling the reservoir.

Referring to the drawings, the lighter assembly generally designated 10 includes a reservoir member 11, a guide housing 12, and an ignition member 13. The reservoir member 11 may take any suitable or desirable shape, and as shown in the drawings, comprises a hollow cylindrical member having a closed bottom end 14.

The tubular part 15 is joined to and functions as an integral part of the reservoir member 11. The guide housing 12 telescopes over the upper or projecting end of the part 15 and frictionally grips the part 15 to prevent separation during normal use. The guide housing 12 has an inner cylindrical surface 16 which forms a sliding guide for the ignition member 13.

The ignition member 13 includes bodyparts l7, l8 and 19 which move as a single unit. The bore 20 in the part 17 receives the hollow extension 21 on the part 18. A recess 22 of fixed dimensions is formed within the skirt 23 of the body part 18 between the shoulders 24 and the upper end of the body part 19. A sparking wheel 25 having integral lateral trunnions 26 is carried between curved retaining ears 27 formed at the upper end of the body part l7. A cylindrical flint element 28 is slidably mounted in a bore 29 in the body part 17, and is urged by a coil compression spring 30 into contact with the periphery of the sparking wheel 25.

Ahollow projection 32 on the body part 19 has a cylindrical outer surface 33 and a central axial passage 34 open at both ends. A pressure reducing regulator assembly generally designated 36 is mounted within the cavity 22 and is confined between the shoulder 24 and the upper end 37 of the body part 19. This pressure reducing regulator assembly 36 is similar to that disclosed in our US. Pat. No. 3,523,006 granted Aug. 4, l970, and entitledGas Flow Regulator For Lighter. As best shown in FIG. 5, the discs 41 and] 42 each comprise a non-porous elastomer and the discs 43 and 44 are each formed of porous material, and the discs are arranged so that the flow from the passage 34 into the passageway 45 is required to pass radially through each of the porous discs 44 and 43. The chamber or recess 22 containing the discs 41, 42, 43 and 44 is of fixed dimensions determined by contact between the shoulders 46 and 47. i

The axial opening 48 in the part 15 of the reservoir member 11 includes an annular cavity 49 which receives an O-ring 50 formed of elastomeric material.

The part 15 encircles an annular sleeve 51 which has an upper end 52 forming the bottom wall of the cavity 49. The sleeve 51 is fixed within the part 15 and serves as an integral portion thereof. A movable valve element 53 is mounted within the sleeve 51 and has an annular rim 54 defining a recess 55 for reception of the lower end of the hollow projection 32. An annular end surface 56 on the valve element 53 engages the O-ring 50 to form a seal. The valve element 53 is urged toward closed position against the O-ring 50 by means of coil compression spring 57 which extends between the bottom wall 58 of the sleeve 51 and the shoulder 59 on the valve element 53. Fuel under pressure such as liquid petroleum gas Within the interior of the reservoir mem ber 11 passes through the opening 62 in the bottom wall 58 and through the annular clearance space between the valve element 53 and the-bore 63 of the sleeve 51, but leakage is prevented by contact of the annular end surface 56 with the O-ring 50.

The hollow projection 32 extends through the opening 48 and its outer surface 33 forms a sliding seal within the O-ring 50. A bulbous enlargement 64 is provided on the lower end of the projection 32. Interengaging parts on the projection 32 and valve element 53 cause movement of the valve element 53 from the closed position shown in FIGS. 2 and 4 to the open position shown in FIG. 5. These interengaging parts comprise the lower end of the projection 32 and the cross rib 65 fixed in the bottom of the recess 55. When the ignition member 13 is moved within the guide housing 12 in a direction to engage the parts 64 and.65 and to compress the spring 57, the valve element 53 is moved to its open position with the annular end surface 56 spaced away from the O-ring 50. The outer surface 33 of the projection 32, however, remains in sealing relationship within the O-ring 50. Accordingly, fuel under pressure passes through the annular space between the bore 63 and the valve element 53, into the recess 55, through the opening 34 and into the interior of the hollow projection 32.

The fuel flows to the pressure reducing regulator assembly 36 in the manner described above and emerges into the low pressure passage 45 leading to the burner orifice 68. This orifice is formed in an end'wall of the body part 17 and is positioned so that sparks from the sparking wheel 25 and flint 28 may serve to ignite the fuel issuing from the orifice 68 into the projected pocket 69. It will be observed that the passage 34, the

pressure reducing regulator assembly 36, and the passage 45 constitute a passage means connecting the hollow projection 32 to the burner orifice 68.

The parts remain in the position shown in FIGS. 2 and 4 until it is desired to produce a flame at the burner orifice 68. The guide housing 12 may be grasped by the fingers of one hand while the thumb applies pressure downward on the sparking wheel 25 to rotate it in a clockwise direction as viewed in FIGS. 1 and 2. Thus, downward pressure on the sparking wheel 25 causes the ignition member 13 to slide downward within the guide housing 12. Only a very small movement is needed but, in any event, the maximum movement is limited by engagement of the shoulder 71 with the shoulder 72. This downward movement of the ignition member 13 causes the hollow projection 32 to move the valve element 53 against the action of the spring 57, and the end surface 56 on the valve element 53 is thus moved away from the seal ring 50 to the open position shown in FIG. 5. This permits fuel under pressure to flow into the recess 55 and into the passage 34 within the hollow projection 32. Fuel under pressure does not escape between the opening 48 and the hollow projection 32 because of the sealing action of O-ring 50 against the outer surface 33 of the hollow projection 32. The relatively high pressure within the interior of the hollow projection 32 is reduced by the regulator assembly 36 so that fuel under very low pressure flows through the passage 45 and through the orifice 68 where a flame is ignited by sparks from the wheels 25 and flint 28.

If it is desired to have the flame burn at the orifice 68 for an extended time interval, the downward pressure on the sparking wheel 25 is maintained. If, on the other hand, the flame is needed for only a few seconds, pressure on the sparking wheel 25 is relaxed to permit the spring 67 acting through parts 65 and 32 to move the ignition assembly 13 back to the closed position shown in FIGS. 2 and 4. In this position further flow from the reservoir member 11 is prevented by engagement of the end surface 56 with the O-ring 50. The O-ring 50 exerts a restraining force on bulbous enlargement 64 on the lower end of the hollow projection 32 to prevent it from moving out of the O-ring. The relatively small amount of high pressure fuel within the recess 55 and within the interior of the hollow projection 32 is burned at the orifice 68 at low pressure. The amount of high pressure fuel to be burned at the closing of the valve element 53 is determined by the size of the passage 34 within the hollow projection 32. The fuel supply to the flame at the orifice 68 is depleted in a few seconds and the flame dies out rapidly, without any appreciable slow fade.

The bulbous enlargement 64 on the end of the hollow projection 32 normally limits upward movement of the ignition member 13 (including body parts 17, 18 and 19) under the force of the spring 57 acting on the valve element 53. However, the O-ring 50 is sufficiently deformable to permit this bulbous enlargement 64 to pass through it in either direction under manual force applied axially to the guide housing 12. A shoulder 74 is provided at the bottom of the slot 75 which receives the sparking wheel 25, and this shoulder 74 underlies a portion of the sparking wheel so that upward axial movement of the guide housing 12 relative to the reservoir member 11 carries the ignition member with it,

4 pulling the bulbous portion 64 through the O-ring 50.

When it is desired to refill the reservoir member 11 after the supply of fuel under pressure has been depleted, the guide housing 12 and ignition member 13 are removed as a unit from the reservoir member 11. As described above, this is accomplished by moving the guide housing 12 axially away from the reservoir member 11 to separate the parts at the joint 73. As shown in FIG. 7, this leaves the opening 48 exposed at the upper end of the part 15 of the reservoir member 11. A filler tube 77 of conventional form is then thrust into the opening 48 and into the interior of the seal ring 50 to engage the valve element 53 and move it in a direction to compress the spring 57. This moves the end surface 56 away from the seal ring 50 and thus establishes a path for fuel under pressure to pass through the filler tube 77 into the recess 55, over the annular end surface 56 and through the clearance space around the valve element 53 and within the bore 63 and through the opening 62 into the interior of the reservoir member 11. Escape of fuel during the filling operation is prevented by contact between the O-ring and the outer cylindrical surface of the filler tube 74.

Replacement of the flint 28 is accomplished by removing the ignition member 13 from the upper open end of the guide housing 12. The parts 17 and 21 may then be separated axially to gain access to the spring 30 and flint 28.

In the modified form of the invention shown in FIG. 6, all of the parts are the same except that the pressure reducing regulator assembly 36a employs a compressible porous disc 78, the extent of compression being determined by threaded connection 79. To reduce the height of the flame the porous disc 78 is compressed to a greater extent. In other respects the mode of operation of this form of the invention is the same as that previously described.

Having fully described our invention, it is to be understood that we are not to be limited to the details herein set forth but that our invention is of the full scope of the appended claims.

We claim:

1. In a lighter, the combination of: a reservoir member adapted to contain fuel under pressure, said reservoir member having parts forming an annular cavity, a resilient sealing ring mounted in said cavity, a valve element mounted within said reservoir member for movement toward and away from said sealing ring, said valve element having an end surface engageable with said sealing ring to form a seal, resilient means within said reservoir member acting to hold said valve end surface in sealing engagement with said sealing ring to prevent escape of fuel from said reservoir member, an ignition member having a hollow projection extending through said sealing ring in sliding sealing engagement therewith, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said reservoir member serves to move said valve element against the action of said resilient means to move said valve end surface away from said resilient sealing ring, whereby fuel under pressure may pass from said reservoir member into said hollow projection, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice,

and pressure reducing regulator means on the ignition member interposed in said passage means.

2. In combination: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge, a resilient sealing ring mounted in said opening and projecting into said opening, a valve element movably mounted within said reservoir member and having an annular rim provided with an end surface, resilient means within said reservoir member acting on said valve element to move said end surface into sealing contact with said ring to prevent escape of fuel from said reservoir member, and a second member having a hollow projection extending into the interior of said rim to contact said valve ele' ment, said hollow projection having an outer surface forming a sliding seal with said resilient ring, whereby movement of said second member may cause said projection to move said rim end surface away from said sealing ring to permit fuel under pressure to pass from said reservoir member into said hollow projection.

3. The combination set forth in claim 2 in which the sealing ring'is an O-ring mounted in an annular cavity encircling said openin 4. In a device of the class described, the combination of: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge annular resilient sealing means mounted in said opening, a valve element movably mounted within said reservoir member and having an annular rim, said rim having an end surface engageable with said sealing means to form a seal, resilient means within said reservoir member acting on said valve element to hold said end surface in sealing engagement to prevent escape of fuel from said reservoir member, an ignition member having a hollow projection extending into the interior of said rim through said sealing means in sliding sealing engagement therewith, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member serves to move said valve element against the action of said resilient means to move said valve rim surface away from said resilient sealing means, whereby fuel under pressure may pass from said reservoir member into said hollow projection. r

5. In a lighter, the combination of: a reservoir member adapted to contain fuel under pressure, said reservoir member having a single opening for both filling and discharge, a valve element movably mounted within said reservoir member to close the opening and prevent escape of fuel from said reservoir member, a spring within said reservoir member acting to hold said valve element in closed position, an ignition member having a hollow cylindrical projection extending into said opening, a guide housing secured to one of said members for guiding the ignition member relative to the reservoir member, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said reservoir member serves to move said valve element against the action of said spring to open said valve, whereby fuel under pressure may pass from said reservoir member into said hollow projection, sealing means in said opening cooperating with said hollow projection and with said valve element to prevent leakage of fuel, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice, and pressure reducing regulator means on the ignition member interposed in said passage means, the ignition member being separable from the reservoir member" to permit insertion of a refill tube through said opening to open the valve element against the action of the spring.

6. In a lighter, the combination of: a reservoir member adapted to contain fuel under pressure, said reservoir member having an opening at one end and having parts forming an annular cavity near said opening, a resilient O-ring mounted in said cavity, a valve element mounted within said reservoir member for movement toward and away from said O-ring, said valve element having an end surface engageable with said O-ring, a spring within said reservoirmember acting to hold said valve end surface in sealing engagement with said O- ring to prevent escape of fuel from said reservoir member through said opening, a guide housing detachably secured to said reservoir member, an ignition member guided for axial sliding movement within said guide housing and having a hollow cylindrical projection extending through said O-ringin sliding sealing engagement therewith, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said guide housing serves to move said valve element against the action of said resilient means to move-said valve end surface away from said resilient sealing ring, whereby fuel under pressure may pass from said reservoir member into said hollow projection, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice, and pressure reducing regulator means on the ignition member interposed in said passage means, the guide housing and ignition member being separable as a unit from the reservoir member to permit insertion of a refill tube through said opening and in contact with said O-ring to move the valve element against the action of the spring.

7. The combination set forth inclaim 6 in which the pressure reducing regulator means includes aplurality of discs confined in a chamber of fixed dimensions.

8. The combination set forth in claim 6 in which the pressure reducing regulator means includes a resilient disc and means for variably compressing the disc.

9. In a lighter, the combination of: a reservoirmernber adapted to contain fuel under pressure, said reservoir member having parts forming an annular cavity, a resilient sealing ring mounted in said cavity, a valve element mounted within said reservoir member for movement toward and away from said sealing ring, said valve element having an end surface engageable with said sealing ring to form a seal, resilient means within said reservoir member acting to hold said valve end surface in sealing engagement with said sealing ring to prevent escape of fuel from said reservoir member, an ignition member having a hollow projection extending through said sealing ring in sliding sealing engagement therewith, the hollow projection having an enlarged bulbous part engageable with the sealing ring to limit movement of the ignition member in an axial direction away from said sealing ring, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said reservoir member serves to move said valve element against the action of said resilient means to move said valve end surface away from said resilient sealing ring, whereby fuel under pressure may pass from said reservoir member into said hollow projection, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice, and pressure reducing regulator means on the ignition member interposed in said passage means.

10. In combination: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge, a resilient O-ring mounted in said opening and projecting into said opening, a valve element movably mounted within said reservoir member and having an annular rim provided with an end surface, resilient means within said reservoir member acting on said valve element to move said end surface into sealing contact with said O-ring to prevent escape of fuel from said reservoir member, a second member having a hollow projection extending into the interior of said rim to contact said valve element, said hollow projection having an outer surface forming a sliding seal with said O-ring, whereby movement of said second member may cause said projection to move said rim end surface away from said O-ring to permit fuel under pressure to pass from said reservoir member into said hollow projection, the hollow projection having an enlarged bulbous part engageable with said O- ring to resiliently limit movement of the second member in an axial direction away from said O-ring.

11. The combination set forth in claim 10 in which the bulbous part may be forced axially through said O- ring for purposes of assembly and disassembly of the members.

12. In a device of the class described, the combination of: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge, annular resilient sealing means positioned in said opening, a valve element movably mounted within said reservoir member and having an annular surface engageable with a portion of said sealing means to form a seal, resilient means within said reservoir member acting on said valve element to hold said annular surface in sealing engagement to prevent escape of fuel from said reservoir member, an ignition member having a hollow axial projection engaging another portion of said sealing means, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member serves to move said valve element against the action of said resilient means to move said annular surface away from said resilient sealing means, whereby fuel under pressure may pass without leakage from said reservoir member into said hollow projection.

13. The combination set forth in claim 12 in which the hollow projection has an enlarged bulbous part engageable with a portion of said annular resilient sealing means to resiliently limit axial separation of said members. 

1. In a lighter, the combination of: a reservoir member adapted to contain fuel under pressure, said reservoir member having parts forming an annular cavity, a resilient sealing ring mounted in said cavity, a valve element mounted within said reservoir member for movement toward and away from said sealing ring, said valve element having an end surface engageable with said sealing ring to form a seal, resilient means within said reservoir member acting to hold said valve end surface in sealing engagement with said sealing ring to prevent escape of fuel from said reservoir member, an ignition member having a hollow projection extending through said sealing ring in sliding sealing engagement therewith, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said reservoir member serves to move said valve element against the action of said resilient means to move said valve end surface away from said resilient sealing ring, whereby fuel under pressure may pass from said reservoir member into said hollow projection, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice, and pressure reducing regulator means on the ignition member interposed in said passage means.
 2. In combination: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge, a resilient sealing ring mounted in said opening and projecting into said opening, a valve element movably mounted within said reservoir member and having an annular rim provided with an end surface, resilient means within said reservoir member acting on said valve element to move said end surface into sealing contact with said ring to prevent escape of fuel from said reservoir member, and a second member having a hollow projection extending into the interior of said rim to contact said valve element, said hollow projection having an outer surface forming a sliding seal with said resilient ring, whereby movement of said second member may cause said projection to move said rim end surface away from said sealing ring to permit fuel under pressure to pass from said reservoir member into said hollow projection.
 3. The combination set forth in claim 2 in which the sealing ring is an O-ring mounted in an annular cavity encircling said opening.
 4. In a device of the class described, the combination of: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge, annular resilient sealing means mounted in said opening, a vaLve element movably mounted within said reservoir member and having an annular rim, said rim having an end surface engageable with said sealing means to form a seal, resilient means within said reservoir member acting on said valve element to hold said end surface in sealing engagement to prevent escape of fuel from said reservoir member, an ignition member having a hollow projection extending into the interior of said rim through said sealing means in sliding sealing engagement therewith, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member serves to move said valve element against the action of said resilient means to move said valve rim surface away from said resilient sealing means, whereby fuel under pressure may pass from said reservoir member into said hollow projection.
 5. In a lighter, the combination of: a reservoir member adapted to contain fuel under pressure, said reservoir member having a single opening for both filling and discharge, a valve element movably mounted within said reservoir member to close the opening and prevent escape of fuel from said reservoir member, a spring within said reservoir member acting to hold said valve element in closed position, an ignition member having a hollow cylindrical projection extending into said opening, a guide housing secured to one of said members for guiding the ignition member relative to the reservoir member, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said reservoir member serves to move said valve element against the action of said spring to open said valve, whereby fuel under pressure may pass from said reservoir member into said hollow projection, sealing means in said opening cooperating with said hollow projection and with said valve element to prevent leakage of fuel, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice, and pressure reducing regulator means on the ignition member interposed in said passage means, the ignition member being separable from the reservoir member to permit insertion of a refill tube through said opening to open the valve element against the action of the spring.
 6. In a lighter, the combination of: a reservoir member adapted to contain fuel under pressure, said reservoir member having an opening at one end and having parts forming an annular cavity near said opening, a resilient O-ring mounted in said cavity, a valve element mounted within said reservoir member for movement toward and away from said O-ring, said valve element having an end surface engageable with said O-ring, a spring within said reservoir member acting to hold said valve end surface in sealing engagement with said O-ring to prevent escape of fuel from said reservoir member through said opening, a guide housing detachably secured to said reservoir member, an ignition member guided for axial sliding movement within said guide housing and having a hollow cylindrical projection extending through said O-ring in sliding sealing engagement therewith, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said guide housing serves to move said valve element against the action of said resilient means to move said valve end surface away from said resilient sealing ring, whereby fuel under pressure may pass from said reservoir member into said hollow projection, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice, and pressure reducing regulator means on the ignition member interposed in said passage means, the guide housing and ignition member being separable as a unit from the reservoir member to permit insertion of a refill tube through said opening and in contact with said O-ring to move the valve element against the action of the spRing.
 7. The combination set forth in claim 6 in which the pressure reducing regulator means includes a plurality of discs confined in a chamber of fixed dimensions.
 8. The combination set forth in claim 6 in which the pressure reducing regulator means includes a resilient disc and means for variably compressing the disc.
 9. In a lighter, the combination of: a reservoir member adapted to contain fuel under pressure, said reservoir member having parts forming an annular cavity, a resilient sealing ring mounted in said cavity, a valve element mounted within said reservoir member for movement toward and away from said sealing ring, said valve element having an end surface engageable with said sealing ring to form a seal, resilient means within said reservoir member acting to hold said valve end surface in sealing engagement with said sealing ring to prevent escape of fuel from said reservoir member, an ignition member having a hollow projection extending through said sealing ring in sliding sealing engagement therewith, the hollow projection having an enlarged bulbous part engageable with the sealing ring to limit movement of the ignition member in an axial direction away from said sealing ring, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member relative to said reservoir member serves to move said valve element against the action of said resilient means to move said valve end surface away from said resilient sealing ring, whereby fuel under pressure may pass from said reservoir member into said hollow projection, means providing a burner orifice on said ignition member, passage means extending from the hollow projection to said burner orifice, and pressure reducing regulator means on the ignition member interposed in said passage means.
 10. In combination: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge, a resilient O-ring mounted in said opening and projecting into said opening, a valve element movably mounted within said reservoir member and having an annular rim provided with an end surface, resilient means within said reservoir member acting on said valve element to move said end surface into sealing contact with said O-ring to prevent escape of fuel from said reservoir member, a second member having a hollow projection extending into the interior of said rim to contact said valve element, said hollow projection having an outer surface forming a sliding seal with said O-ring, whereby movement of said second member may cause said projection to move said rim end surface away from said O-ring to permit fuel under pressure to pass from said reservoir member into said hollow projection, the hollow projection having an enlarged bulbous part engageable with said O-ring to resiliently limit movement of the second member in an axial direction away from said O-ring.
 11. The combination set forth in claim 10 in which the bulbous part may be forced axially through said O-ring for purposes of assembly and disassembly of the members.
 12. In a device of the class described, the combination of: a reservoir member adapted to contain fuel under pressure and having a single opening for both filling and discharge, annular resilient sealing means positioned in said opening, a valve element movably mounted within said reservoir member and having an annular surface engageable with a portion of said sealing means to form a seal, resilient means within said reservoir member acting on said valve element to hold said annular surface in sealing engagement to prevent escape of fuel from said reservoir member, an ignition member having a hollow axial projection engaging another portion of said sealing means, inter-engaging parts on said hollow projection and said valve element whereby axial movement of said ignition member serves to move said valve element against the action of said resilient means to move said annular surface away from said resilient sealing means, whereby fuel under pressure may pass without leakage from said reservoir member into said hollow projection.
 13. The combination set forth in claim 12 in which the hollow projection has an enlarged bulbous part engageable with a portion of said annular resilient sealing means to resiliently limit axial separation of said members. 